<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // 1.race  2. all  3. allSettled;

        let p1  = new Promise((resolve,reject)=>{
            setTimeout(() => {
                resolve(111)
            }, 1000);
        })

        let p2  = new Promise((resolve,reject)=>{
            setTimeout(() => {
                // resolve(222)
                reject("error");
            }, 3000);
        })

        let p3  = new Promise((resolve,reject)=>{
            setTimeout(() => {
                resolve(333)
            }, 2000);
        })

        // Promise.allSettled([p1,p2,p3]).then(res=>{
        //     console.log(res);
        // })
        /* 
            [{status:"fulfilled",value:111},{reson:111,status:"rejected"}]
        
        */


        function MyallSettled(arr){
            return new Promise(reslove=>{
                // reslove([111,222,333]);
                // let resArr = [];
                let resArr = new Array(arr.length);
                let count = 0;
                // console.log(resArr);
                arr.forEach((p,key)=>{
                    p.then(res=>{
                        let obj = {};
                        obj.status = "fulfilled";
                        obj.value = res;
                        resArr[key] = obj;
                        // resArr.push(obj);
                        // console.log(resArr);
                        count++;
                        if(count===arr.length){
                            reslove(resArr)
                        }
                    },err=>{
                        let obj = {
                            status:"rejected",
                            reson:err
                        };
                        resArr[key] = obj;
                        count++;
                        if(count===arr.length){
                            reslove(resArr)
                        }
                    })
                })
            })
        }

        MyallSettled([p1,p2,p3]).then(res=>{
            console.log(res);
        })


    </script>
</body>
</html>